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New Evidence for Modified Gravity

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The ultraweak gravity in the outskirts of galaxies mean the quantised nature of gravity should become important. The standard model consists of ignoring this and using classical theories of gravitation anyway. This fails. Unless one adds vast amounts of hypothetical dark matter – increasingly unlikely given results from the LHC and elsewhere. Obtaining the required distributions of dark matter from reasonable initial conditions also appears to be very unlikely.

This lecture will be about a compelling empirical modification to Newtonian gravity that does galactic dynamics without dark matter. It has some seemingly bizarre consequences for the local group of galaxies, in particular an ancient flyby of Andromeda. I will be presenting recently gathered evidence, some of it my own, which strongly suggests this really did happen.

This talk is part of the Cambridge University Astronomical Society (CUAS) series.

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